"Guitar Hero 2 Rocks! No matter how many time I play games like this, it is always just a fun way to play and spend time with the family. Guitar Hero really did a great job on this one as well. Here are the Cheats for Guitar Hero 2 for Xbox 360. Guitar Hero IICheat Codes Game Codes Enter this code at the main menu screen where it shows "Career" and "Quick Play." Cheat Effect"